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Hana Mining Ltd. announced final results on the first locked cycle tests on oxide-transitional material from the Banana Zone at the Ghanzi Project.
The results show that the copper-silver oxide mineralization at the Banana Zone is amenable to conventional flotation recovery technology. Highlights of recent metallurgical results: • Initial locked cycled tests on a master composite sample, containing both oxide and transition material, at a coarse grind size of 143 microns, show a copper recovery of 49.9% and an exceptionally high silver recovery of 87.7%. • A final concentrate grade of 48.1% copper and 764.0 g/t silver was achieved at the above stated recoveries. • The metallurgical work on the master composite, prepared to represent typical oxide and transition ore mineralization, demonstrates that it is possible to coprocess this type of mineralization with the Ghanzi copper sulphide mineralization without a detrimental effect by using similar processing conditions • Characterization of samples of oxide and oxide to sulfide transition mineralization, is ongoing so as to determine the effect of the variability in copper mineralization on the metallurgical response. More information, click here. |
